When to go · Iron Mountain
Iron Mountain, month by month
The best months for Iron Mountain: May, Jun, Jul, Aug, Sep. Months to avoid: Jan, Feb, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Dec–Feb (cold, limited daylight).-5 °C (23 °F) / -15 °C (5 °F), 8 rain days23 °F (-5 °C) / 5 °F (-15 °C), 8 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Dec–Feb (cold, limited daylight).-3 °C (27 °F) / -14 °C (7 °F), 7 rain days27 °F (-3 °C) / 7 °F (-14 °C), 7 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (May–Sep). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.2 °C (36 °F) / -9 °C (16 °F), 9 rain days36 °F (2 °C) / 16 °F (-9 °C), 9 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (May–Sep). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.10 °C (50 °F) / -2 °C (28 °F), 10 rain days50 °F (10 °C) / 28 °F (-2 °C), 10 rain daysCrowds: Medium · 1 festival or holiday
- MayGreatInside Iron Mountain's best window: May–Sep.17 °C (63 °F) / 5 °C (41 °F), 11 rain days63 °F (17 °C) / 41 °F (5 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Iron Mountain's best window: May–Sep.22 °C (72 °F) / 10 °C (50 °F), 12 rain days72 °F (22 °C) / 50 °F (10 °C), 12 rain daysCrowds: High
- JulyGreatInside Iron Mountain's best window: May–Sep.25 °C (77 °F) / 13 °C (55 °F), 13 rain days77 °F (25 °C) / 55 °F (13 °C), 13 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Iron Mountain's best window: May–Sep.24 °C (75 °F) / 12 °C (54 °F), 12 rain days75 °F (24 °C) / 54 °F (12 °C), 12 rain daysCrowds: High
- SeptemberGreatInside Iron Mountain's best window: May–Sep.20 °C (68 °F) / 8 °C (46 °F), 11 rain days68 °F (20 °C) / 46 °F (8 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGoodOutside the best window (May–Sep). Across United States: Best all-round month: New England foliage, desert parks, cooler cities. High roads start closing late in the month.13 °C (55 °F) / 2 °C (36 °F), 9 rain days55 °F (13 °C) / 36 °F (2 °C), 9 rain daysCrowds: Medium
- NovemberMixedOutside the best window (May–Sep). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.5 °C (41 °F) / -5 °C (23 °F), 9 rain days41 °F (5 °C) / 23 °F (-5 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Dec–Feb (cold, limited daylight).-2 °C (28 °F) / -12 °C (10 °F), 8 rain days28 °F (-2 °C) / 10 °F (-12 °C), 8 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Iron Mountain, side by side.
Verdict
May: Great
Jun: Great
Daytime high
May: 17 °C (63 °F)63 °F (17 °C)
Jun: 22 °C (72 °F)72 °F (22 °C)
Night low
May: 5 °C (41 °F)41 °F (5 °C)
Jun: 10 °C (50 °F)50 °F (10 °C)
Rain days
May: 11 (better)
Jun: 12
Crowds
May: Medium
Jun: High
Prices
May: Medium
Jun: High
Festivals listed
May: 1
Jun: 0
May: Inside Iron Mountain's best window: May–Sep.
June: Inside Iron Mountain's best window: May–Sep.
Iron Mountain: figures are long-term averages from this guide, not a forecast.